#283139

#283139

Color Values

HEX

#283139

RGB

40, 49, 57

HSL

208.2, 17.5%, 19.0%

HSV

208.2, 29.8%, 22.4%

CMYK

29.8%, 14.0%, 0.0%, 77.6%

OKLCH

0.3081 0.019 245.3

Properties

Cool Dark Nearest: RAL 7026 Granite Grey

Color Harmonies

Complementary

#283139

#393028

Analogous

#283938

#282839

#283139

Triadic

#283139

#392831

#313928

Split Complementary

#283139

#392828

#393828

Tetradic

#283139

#382839

#393028

#283928

Color Blindness Simulation

Original

#283139

Protanopia

#2C2C37

Deuteranopia

#2B2B37

Tritanopia

#283635

Achromatopsia

#303030

CSS Usage

background-color: #283139;
color: #283139;
border-color: #283139;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F6F7F8
100
#EAEDF0
200
#D5DCE2
300
#B7C2CD
400
#90A2B1
500
#698196
600
#546778
700
#435260
800
#35404B
900
#293138
950
#1A1F23

Contrast Checker

Text on white

13.22:1

AA Pass AAA Pass

Text on black

1.59:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026